Documents / Official release
This U.S. Department of War file, undated, holds checklist summaries of incidents 1 to 100 of unidentified flying objects reported in 1947 and early 1948. The first entries cover sightings of silver discs and spheres by officers and staff at Muroc Army Air Field on 7 and 8 July 1947. Next come the Portland, Oregon police reports of 4 July, a United Air Lines crew near Emmett, Idaho, and a set of 30 December flame and explosion reports from California and Nevada. The file ends with two Finnish sightings.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
Read from the scan by GLM-OCR; expect the odd misread word.
## RESTRICTED CHECK-LIST - UNIDENTIFIED FLYING OBJECTS Incidont # 1. Date 4 July 1947 2. Time 1700 3. Location Portland, Oregon 4. Name of observer Thomas W. Dwyer 5. Occupation of observer N/S 6. Address of observer 1232 N. E. 59th Ave 7. Placo of observation Portland, Oregon 8. Number of objects 3 9. Distance of object from observer N/S 10. Timo in sight N/S 11. Altitude high 12. Spood N/5 13. Diroction of flight 1 - southeast; 2- northeast 14. Tactics N/S 15. Sound N/S 16. Size N/S 17. Color silver 18. Shape $ \pi / S $ 19. Odor detected N/S 20. Apparent construction N/S 21. Exhaust trails N/S Weathor conditions N/3 23. Effect on clouds N/S 24. Sketches or photographs N/S 25. Manner of disappearance N/S 26. Remarks: One object was he ding southeast and two others were going northeast.
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 209 pages are in the text index: search them above, or from the library's search.